#VU11629 Infinite loop in Exempi - CVE-2017-18238

Vulnerability identifier: #VU11629

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18238

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Exempi
Client/Desktop applications / Multimedia software

Vendor: Freedesktop.org

Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the TradQT_Manager::ParseCachedBoxesfunction defined in the source code file XMPFiles/source/FormatSupport/QuickTime_Support.cpp due to infinite loop when handling Extensible Metadata Platform (XMP) data in .qt files. A remote attacker can trick the victim into accessing a specially crafted .qtfile, trigger memory corruption and cause the service to crash.

Mitigation
Update to version 2.4.4.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.3

---

External links
https://bugs.freedesktop.org/show_bug.cgi?id=102483

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.